1. Racah Institute of Physics, Hebrew University of Jerusalem, 9190401 Jerusalem, Israel.
2. Faculty of Medicine, Hebrew University of Jerusalem, 9112001 Jerusalem, Israel.
3. School of Computer Science, Hebrew University of Jerusalem, 9190401 Jerusalem, Israel.
4. Network Dynamics, Max Planck Institute for Dynamics and Self-Organization, 37077 Göttingen, Germany.
5. International Max Planck Research School for Physics of Biological and Complex Systems, 37077 Göttingen, Germany.
6. Technical University of Dresden, Institute for Theoretical Physics, 01062 Dresden, Germany.
7. Bernstein Center for Computational Neuroscience, 37077 Göttingen, Germany.
8. Department of Physics, Technical University of Darmstadt, 64289 Darmstadt, Germany.